Sharp AH-S22AW2 Manual de usuario

AH-S22AW2

AH-S25AW2

SY994AHS25AW2

SERVICE MANUAL

SHARP CORPORATION

AU-S22AW2

AU-S25AW2

OUTDOOR UNIT

Page

SPECIFICATIONS ............................................................................................................................................ 2

EXTERNAL DIMENSIONS................................................................................................................................. 3

WIRING DIAGRAMS......................................................................................................................................... 5

ELECTRICAL PARTS ........................................................................................................................................ 7

BLOCK DIAGRAM ............................................................................................................................................. 8

MICROCOMPUTER CONTROL SYSTEM....................................................................................................... 10

FUNCTIONS .................................................................................................................................................... 14

FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 19

BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 21

REFRIGERATION CYCLE............................................................................................................................. 23

PERFORMANCE CURVES ............................................................................................................................ 24

DISASSEMBLING PROCEDURE ................................................................................................................... 25

PUMP DOWN....................................................................................................................................................34

REPLACEMENT PARTS LIST......................................................................................................................... 35

TABLE OF CONTENTS

SPLITTYPE

ROOM AIR CONDITIONERS

INDOOR UNIT

MODELS AH-S22AW2

AH-S25AW2

Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome

countries) thesetshouldberestoredtoitsoriginalconditionandonly

parts identical to those specified should be used.

AH-S22AW2

AH-S25AW2

SPECIFICATIONS

ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR

UNIT AH-S22AW2 AU-S22AW2 AH-S25AW2 AU-S25AW2

Cooling capacity kcal/h 1700(600 - 2300) 1750(600 - 2500)

Moisture removal Liters/h 1.1 1.1

Electrical data

Phase – Single

Rated frequency Hz 60

Rated voltage range V 198 to 242

Rated voltage V 220

Rated current Cool A 3.7(1.5 - 5.6) 3.9(1.5 - 6.1)

Rated input Cool W 720(270 - 1100) 750(270 - 1200)

Power factor Cool % 88 87

Compressor Type Hermetically sealed rotary type

Model 2RD110N5BA03

Oil charge 350cc (SUNISO 4GDID)

Refrigerant system Evaporator Bare tube type Grooved tube type

Condenser Louver Fin and Grooved tube type

Control Capillary tube

Refrigerant volume 630g 660g

Noise level High dB(A) 35 43 36 43

(at cooling) Med. dB(A) 31 – 32 –

Low dB(A) 26 – 27 –

Fan system

Drive Direct drive

Air flow quantity High m3/min. 7.0 23.1 7.2 23.1

(at cooling) Med. m3/min. 6.1 – 6.2 –

Low m3/min. 4.7 – 4.9 –

Fan Cross flow fan Propeller fan Cross flow fan Propeller fan

Connections

Refrigerant coupling Flare type

Refrigerant tube size Gas, Liquid 3/8", 1/4"

Refrigerant pipe sets No. AZ-24H5E; 5m, AZ-24H7E; 7m

Drain piping mm O.D ø 18

Others

Safety device Compressor: Thermal protector Compressor: Thermal protector

Fan motors: Thermal fuse

Fuse, Micro computer control

Air filters Polypropylene net (Washable)

Net dimensions Width mm 750 698 750 698

Height mm 270 530 270 530

Depth mm 183 250 183 250

Net weight kg 8 28 8 28

Note: The condition of star (

) marked item are ‘CNS3615’.

AH-S22AW2

AH-S25AW2

EXTERNAL DIMENSIONS

Figure E-1. INDOOR UNIT

Figure E-2. OUTDOOR UNIT

AU-F22SEY

250

280

304

470

10.5

5hole

185 35

135

515

530

698

129 Length (mm)

AY-F22SE

750

270

183

1500

Length unit (mm)

19.5

CRMC-A442JBE0

R03(AAA) 2PCS.

FULL

POWER

SHARP CORPORATION

INVERTER AIR CONDITIONER

182

AH-S22AW2

AH-S25AW2

(3) Installation dimensions

The front position of auxiliary pipe is

stamped on the installation plate. 

It is used as a position mark when the 

piping is connected.

At a distance equal to the scale 

stamped on the installation plate 

you will find the center of rear piping 

hole. Engage the measure with the 

front holder of scale, and measure the 

distance.

For ø65, shift the center down by 3 

mm, and makle a hole.

The triangular dents (2 places) in the

center are for center positioning. which 

are usable for installing.

The hole in the center upper part has

-shape. After tentatively tightening

the screw, it is possible to ergage the 

installation plate here.

Unit: mm

Installation dimension range 395 to 550

(when the installation angle is used)

50 mm or more

2945

45 3038

270

Center of left

piping hole

Profile of indoor unit

750

590 80

Edge

80 400

75 60 135

265 100

75 90

450

ø70 piping hole

Center of rear piping hole

Lintel

Stamp mark

AH-S22AW2

AH-S25AW2

WIRING DIAGRAMS

Figure W-1. Wiring Diagram for AH-S22AW2 and AH-S25AW2

AH-S22AW2

AH-S25AW2

Figure W-2. Wiring Diagram for AU-S22AW2 and AU-S25AW2

AH-S22AW2

AH-S25AW2

For Model AH-S22AW2, AH-S25AW2, AU-S22AW2 and AU-S25AW2

DESCRIPTION MODEL REMARKS SITE

Indoor fan motor MLA486 220 - 240V, 50Hz 220V, 60Hz AH

Indoor fan motor capacitor – 430V, 1.5µF AH

Transformer – Primary; AC 230V, 50Hz AH

Secondary; AC14.6V, 50Hz

Fuse – 250V, 2.5A AH

Compressor 2RD110N5BA03 3-PHASE Induction motor AU

Outdoor fan motor MLA485 220 - 240V, 50/60Hz AU

Outdoor fan motor capacitor – 430V, 1.5µF AU

WPE1 – QFS-AA047JBE0(13A, 250V) AU

WPE2 – QFS-GA015JBE0(10A, 250V) AU

WPE3 – QFS-GA008JBE0(3A, 250V) AU

ELECTRICAL PARTS

AH-S22AW2

AH-S25AW2

BLOCK DIAGRAMS

INDOOR UNIT for AH-S22AW2 and AH-S25AW2

DC power supply circuit

Fan motor phase control circuit

Rotation pulse input circuit

AC clock circuit

Louvre motor drive circuit

Remote controller signal

reception circuit

Buzzer drive circuit

CPU reset circuit

CPU oscillator circuit

Room temp. detect circuit

Heat exchanger pipe thermo circuit

Compensation circuit/

select circuit

Compensation circuit

Switchover circuit

Serial I/O circuit

Compressor relay drive circuit

LED drive circuit

Auto restart circuit

Test run circuit

Power on circuit

Flow direction control

(louvre motor)

Wireless remote control

operation

Audible operation confirmation

Room fan motor

Fan motor pulse detect

Room temp. thermistor

Heat exchanger pipe thermistor

Blower temperature,

fan speed, model select

Outdoor ratings

Wireless, preheat

Indoor/outdoor control signal I/O

Outdoor unit power supply

on/off control

LED display

Test run (forced operation)

Self diagnostics,

fault diagnosis

AC power

Unit-unit

wiring (AC

power and

serial

signals)

CPU

Auxiliary mode Auxiliary mode button ON/OFF

2.5 A

FUSE

AH-S22AW2

AH-S25AW2

OUTDOOR UNIT for AU-S22AW2 and AU-S25AW2

CPU

Test mode circuit

Model select swith circuit 

(Dip switch)

LED drive circuit

Winter kit circuit (option)

Heat exchanger pipe 

thermo circuit

Compressor thermo circuit

CPU reset circuit

Serial I/O circuit

Power transistor module 

drive circuit

Outdoor fan relay drive

circuit

Power supply

circuit (built

into IPM)

CPU oscillator circuit

AC overcurrent detection

circuit

DC overcurrent detection

circuit

LED

Heat exchanger pipe

thermistor

Compressor thermistor

Current transformer

Compressor

Power 

transistor module

Outdoor fan

Smoothing

circuit

Filter

circuit Unit-unit

wiring (AC

power and

serial

signals)

13 A

protection

Outdoor temp. thermo. 

circuit Outdoor temperature 

thermistor

10 A 

protection

3 A

protection

Heat exchanger pipe

thermistor(option)

Outdoor temperature

thermistor(option)

AH-S22AW2

AH-S25AW2

MICROCOMPUTER CONTROL SYSTEM

Figure L-1. Electronic Control Circuit Diagram for AH-S22AW2 and AH-S25AW2

–

P41 18

P42 17

P43 16

P44 15

P45 14

P46 13

F12

RESET

33 P27

34 P26

35 P25

36 P24

37 P23

38 P22

39 P21

40 P20

41 K1

42 P17

43 P16

44 P15

45 P14

46 P13

47 P12

48 P11

49 P10

50 P07

51 P06

CK1

SM8313

IC1

CK2 9

AGND 8

P30 7

P31 6

P32 5

P33 4

P50 3

P51 2

P52 1

P53

TEST

52 P05

53 P04

54 P03

55 P02

56 P01

57 P00

58 GND

59 VDD

60 VR

61 P57

62 P56

63 P55

64 P54

OCS

OUT

P60 28

P61 27

P62

GND 25

P63 24

P64 23

P65 22

P66 21

KH 20

P40

IC5

C6 

100µ

10v

C5

47µ

25v

C3

0.1µ

25v

C4

1000µ

25v

C80 

0.1µ

25v

C8

0.01µ

16v C7

1000P

50v

C11

10µ

16v

C12

10µ

16v

C10

0.1µ

25v

C9

1000P

50v

C17 

100µ

10v

C102

0.1µ

25v

C101

33µ

10v

C2

0.22µ

250v

R4

33k

R3

2W

270

R9

10k

R81

R80

6.8k

R6

3.3k

R7

20k

R14

10.0kF

R15

10.0kF

R20

33k

C16

0.01µ

16v

R21 3.3k

R33

R35

R39

R13

10k

R38

R36

R34

JP12

R32

R37

R22

1.2k

R10 680

R12

12k

SW1

R11 330

JP11

R5 

33k

R1 

470 

1/2w

R16 

1.8k

RY1

–

12V

D3 D4

(JP10)

NR1

13 11

SSR1

S201D01

NF1

FUSE

RY1

OUT

TERMINAL 

BOARD

OUTDOOR

UNIT

THERMAL 

FUSE 103˚C

EVAPORATOR

SIRIAL 

SIGNAL

2.5A 250v T

CNR1

C1

1.5µ

430v

C21 0.01µ250vAC

POWER

SUPPLY

SINGLE

PHASE

12CN7

CN701

TRANSFORMER

12V

IC2

12V

12V 12V 12V

SSR1

CN101 CN1

PHOTO DETECTOR UNIT

AUX.

(TEST RUN)

(YELLOW) LED102

(RED) LED101

IC101

CN3

CN301

CN4

LOUVER MOTOR

FUNCTION

MODEL 1

fmin UP

ON/OFF

MODEL 2

THERMO

SHIFT

ON/OFF

MODEL 3

AH/AY MODEL 4

fmax

DOWN

ON/OFF

MODEL 5

OUT T.

THERMO

ON/OFF

MODEL 6

07/09 MODEL 7

HOT

KEEP

ON/OFF

WIRELESS

CHANGE

ON/OFF

PREHEAT

OFF/ON RATE

COOL RATE

HEAT FAN L

SPEED FAN M

SPEED FAN H 

SPEED

IC1 PIN NO. 36(P24)

SYMBOL

MODEL

AH-S22AW2

JP1

SET

AH-S25AW2

X NONE

33(P27)

JP4

X NONE

20(P40)

JP5

19(P41)

JP6

35(P25)

JP2

X NONE

34(P26)

JP3

USE

16(P44)

JP9

X NONEX NONE

NOTE :

1. : TEST POINT

JP99

POWER ON

5V 5V

R18 2.7k

R19

4.7k

12V

TH2

PIPE TEMP.

15k(25˚C)

TH1

ROOM TEMP.

10k(25˚C)

IC80

JP4

RATING COOL

RATING HEAT

FAN L

FAN M

FAN H

WIRELESS

PREHEAT

MODEL 6

MODEL 5

MODEL 7

MODEL 1

MODEL 2

MODEL 3

MODEL 4

JP3

JP2

JP1

JP6

JP7

JP8

JP9

OCS

8MHz

JP5

CN8

INOUT

GND

ZD1

HZ5C-1

7812

2. Not specified is 1/5w

X NONE

18(P42)

JP7

USEUSE

17(P43)

JP8

8(P30)

R30, R31

7(P31)

R32, R33

4(P50)

R34, R35

3(P51)

R36, R37

R38: JP

R39: NONE

R36: JP

R37: NONE

R34: 68k

R35: 13k

R32: JP

R33: NONE

R30: 5.1k

R31: 13k

SET X NONE X NONEX NONE USE X NONEX NONEX NONEX NONE USE R38: JP

R39: NONE

R36: JP

R37: NONE

R34: 68k

R35: 13k

R32: JP

R33: NONE

R30: 5.1k

R31: 13k

2(P52)

R38, R39

IC3

CN9

FAN 

MOTOR

HOLE

R41

R40

R43

R23

100k

R24

22k

C19

0.047µ

50v

C18

100µ

35v

ZD2

HZ24-2

R44

2W

680 x 5

R42

–

C14

1µ

10v

C15

0.01µ

16v

R26

2W

11k

R27

2W

11k

C20

0.01µ

250v

R25

4.7k 4

PC1

PC2

R31

R30

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